First quantum secured 10-Gb/s DWDM transmission over the same installed fibre. - Iris Choi; Yu Rong Zhou; James F. Dynes; Zhiliang Yuan; Andreas Klar; Andrew W. Sharpe; Alan Plews; Marco Lucamarini; Christian Radig; Jorg Neubert; Helmut Griesser; Michael Eiselt; et al. (ECOC, 2014)